The RC-64 II is a high-end center speaker from Klipsch, the top option in the manufacturer's Reference Series. It utilizes a 1.75" titanium-diaphragm tweeter and four 6.5" woofers, outputting 200W RMS, 50W more than the dual-woofer RC-62 II, a step down. Both models features "Tractrix Horn" technology (also used in non-Reference Series Klipsch speakers), which the manufacturer says reduces distortion, improving sound clarity and precision. The speaker's drivers are magnetically shielded, preventing interference from other electronics. The vinyl cabinet is finished in a black or cherry wood pattern.